Stereoselective Heterocycle Synthesis via Zn(II) Promoted Metalloamination/Cyclization

项目摘要 新的，高度立体控制的碳-氮结构反应的阐明 并且碳-碳键仍然是化学合成的中心目标。多年来，各种 这一领域的发现使得能够有效地制备各种重要的药物 造福于人类。该资助申请要求支持主要研究者的 在有机锌（II）促进的杂环合成领域的新项目。本申请 强调了一个新的和潜在的强大的分子内C- N/C-Zn键形成级联，其涉及衍生自N，N-二甲基甲酰胺的官能化锌的加成。 二甲基肼，丙二烯，二烯，烯炔，乙烯基环丙烷和乙烯基环丁烷。我们认为 该方法将作为立体控制合成的载体得到相当大的利用， 生物学相关的小分子。 在拟议的资助期内发现的新化学物质的应用应 容易适用于合成许多立体化学丰富的杂环药理学 意义在这个补助金申请中描述的研究计划预计将提供有价值的 深入了解新的反应类型，应该有助于阐明对生物多样性至关重要的特定因素。 连续的分子内C-N/C-Zn（以及因此：C-N/C-亲电体）键形成的发展 立体控制小分子合成的背景。

PROJECT SUMMARY The elucidation of new, highly stereocontrolled reactions for the construction of carbon–nitrogen and carbon-carbon bonds remains a central goal of chemical synthesis. Over the years, various discoveries in this area have enabled the efficient preparation of a wide variety of important medicinals that have benefited humanity. This grant application requests support for the Principal Investigator's new projects in the area of organozinc(II)-promoted heterocycle synthesis. The present application emphasizes the discovery and synthetic application of a new and potentially powerful intramolecular C- N/C-Zn bond forming cascade involving the addition of functionalized zinc amides, derived from N,N- dimethylhydrazines, to allenes, dienes, enynes, vinylcyclopropanes and vinylcyclobutanes. We believe this method will receive considerable utilization as a vehicle for the stereocontrolled synthesis of biologically relevant small molecules. The application of the new chemistry discovered during the proposed grant period should be readily applicable to the synthesis of numerous stereochemically rich heterocycles of pharmacological significance. The research program described in this grant application is expected to provide valuable insight into new reaction types that should serve to elucidate specific factors that are critical to the development of consecutive intramolecular C-N/C-Zn (and thus: C-N/C-Electrophile) bond formation in the context of stereocontrolled small molecule synthesis.